Ireland experienced its second-warmest September on record last month, according to official meteorological data released by Met Éireann. The national forecaster confirmed that the month was characterized by consistently high temperatures, continuing a trend of warmer-than-average conditions across the country.

Met Éireann's monthly climate statement revealed that mean temperatures for September were significantly above the long-term average at all monitoring stations. The warm conditions were driven by persistent high-pressure systems and warm air masses moving over Ireland during the month, which kept nighttime and daytime temperatures elevated.

While temperatures remained high, rainfall levels varied considerably across different regions. Some parts of the country, particularly in the south and east, experienced drier-than-normal conditions, while other areas saw localized heavy downpours. The combination of high temperatures and variable precipitation has drawn attention from climatologists tracking the broader impacts of changing weather patterns.

The record-breaking warmth follows a series of unusually mild seasons in Ireland, aligning with global climate observations. Met Éireann's data highlights that September 2026 sits just behind the warmest September on record, further demonstrating the upward trajectory of average seasonal temperatures in the region.